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LakeQuality

Cleaner Lakes Than Halverson Lake

5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.

Halverson Lake carries a Grade B (Good) water quality score. Within 30 miles, 5 lakes hold a higher grade. Gillett Lake (Hubbard County, Grade A, 0.9 mi away) is the closest meaningful upgrade.

1
A

Gillett Lake

Hubbard County, Minnesota · 0.9 mi from Halverson Lake
  • +Higher grade (B → A)
  • ++10.1 ft water clarity
  • +Lower phosphorus (8 vs 18 µg/L)
2
A

Twenty-One Lake

Hubbard County, Minnesota · 4 mi from Halverson Lake
  • +Higher grade (B → A)
  • ++8.1 ft water clarity
  • +Lower phosphorus (10 vs 18 µg/L)
3
A

Bad Axe Lake

Hubbard County, Minnesota · 5.8 mi from Halverson Lake
  • +Higher grade (B → A)
  • ++6.5 ft water clarity
4
A

George Lake

Hubbard County, Minnesota · 3.2 mi from Halverson Lake
  • +Higher grade (B → A)
  • ++3.7 ft water clarity
  • +Lower phosphorus (12 vs 18 µg/L)
5
A

Nelson Lake

Hubbard County, Minnesota · 3.8 mi from Halverson Lake
  • +Higher grade (B → A)
  • ++5.6 ft water clarity
  • +Lower phosphorus (12 vs 18 µg/L)

How this list is built

Every lake on LakeQuality has a calculated grade from EPA Water Quality Portal samples — secchi depth, total phosphorus, and chlorophyll-a measured against Metropolitan Council thresholds. To suggest cleaner alternatives, we filter lakes within 30 miles to those with a strictly higher numeric score, then rank by grade improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.

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